An early Drosophila embryo captured during a wave of nuclear division. Dividing nuclei (blue) and non-dividing nuclei (pink) illustrate the rapid, highly organised nature of early development and the substantial regulation of genome organisation needed to enable proper gene activation despite repeated disruption as nuclei divide. Credit: Clemens Hug For many years, researchers believed that the DNA inside a newly fertilized egg started out as a structural 'blank slate' -- a loose and

Tag-uri: DNA